Elevator leg



Aug. 30,1927. Y 1,640,529.

L. BURMEISTER -ELEVATOR' LEG l Filed Maren 22.4926 I I Z/ A .l

E INVENTOR.

ATTORNEYS.

Patented aan. 3o, 1927.

PATENT oFFlcaf LOUIS BURMEISTER, OF MILWAUKEE, WISCONSIN.

' 'ELEVATOR LEG.

Appucatioa mea March 22, 192s. serial No. 96,397.

This invention relates to improvements in elevator legs and spouting such as are used in grain and Hour elevators. l

Heretofore elevator legs of the type referred to have comprised longitudinally eX- tending sections fitted together and provided attheir adjacent -edges with complementary flanges through which fastening bolts passed to hold the sec-tions in assembled relation. The conveying mechanism enclosed by these legs requires repair or overhauling from time to time.r It is then necessary to remove the relatively great number of these bolts for the purpose of vdisassembling the leg sections, this operation requiring considerable time and being very inconvenient. In view ofV the inconvenience with which th-e sections are assembled and bolted together. furthermore, the practice has been followed of shipping them already assembled, the cost and trouble of shipping thereby being greater than if the legs were shipped in knocked down condition with the sections arranged in nested relation.

One of the objects of the present invention is to provide improved means for fastening or securing together the sections comprising an elevator leg of the character referred to, such means being readily applied to fasten the legsections securely together, or readily ind quickly removed to permit ofrdisassemblyA of the sections, and which provides a proper and sufficient seal at the seams or joints to prevent leakage at these points, all this being accomplished without the use o fastening bolts such as have been used in legs of this type constructed heretofore.

Another object is to provide an improved elevator leg of the character referred to wherein the various parts comprising the same may be readily assembled on the job, thus permitting shipping of the legs in knocked down condition lwith the sections r arranged compactly in nested relation.

Otherobjects and advantages will hereinafter appear.

For the purpose of illustrating the invention. several embodiments thereof are shown in the drawings,in which:

Figure 1 is anV elevationalview, showing the manner in 'which the improved ,elevator leg is in elevater ef the charaeter referred teg Fig. 2 is an enlarged section on the line 2-2 of Fig. 1; and i shown at 12 extending through and being f supported bythe intervening floor orfloors and serving toconnect the legs of the elevator. The respective lower ends of legs 13 fit over the upper ends of stubs 12, as shown, while the upper ends of these legs are fitted to the head in any suitable manner. The lower ends of legs 14 are fitted to the boot 10, while the upper ends of these legs are fitted to the lower ends of stubs 12. The usual endless conveyor (not shown) vwith buckets attachedpasses through legs 13 4and 111 and over suitable wheelsor sheaves journaled in the boot and head, the grain or flour being fed into the boot and elevated by means of the conveyor to the head. As more clearly shown in Fig. 2, the leg 13 comris-es a pair of complementary sections 15 fitted together to form a leg substantially rectangular in cross se/ction, the adjacent edges of these sections being bent outwardly to form complementary flanges 16. Each of the flanges 16 is pressed outwardly toform longitudinallyr extending oppositely y arranged beads 17. U-shape fastening mem bers 18 are fitted lover flanges 16, as shown, and comprise sides or portions 19 provided fmwith outwardly and longitudinally extending beads 20 adapted to nest and interlock with beads 17 ,and resilient portions 21 connecting sides 19 land urging the latter inwardly and yieldingly holding the same in interlocking. engagement with flanges 16, the beads 17 and 20 providing for ythe locking action and also forming a tight joint preventing leakage, etc.

lIn constructing or Verecting a leg two sections 15 are fitted together, as shown in Fig. 2, and the fastening members 18 placed over flanges 16 and forced in position, as shown,`

21 permittingvthe sides 19 to spread until beads 20 snap into interlockinghrelation with the flange beads 17, the pertonsel thenactng te sides ,iamwardly and to yieldingly held the interleelang engagement with flanges the resilient portions ride over beads 17 and are moved out "of interloclring relation therewith.

From the foregoing it Vwill be seen that the U-,sha-pemembers 18 provide means for .fastening or securing` the leg lsections securely together and at the same timeprovide a tight joint, and that these members may be readily removed or placed in fastening position, all .this being' accomplished vv vithout' the use of bolts or other fasteners such as used in legs of this type constructed heretofore.

In F ig. 3 the joints or seams are shown as being in the center of opposite sides of ,the leg, these joints being of the same construction as the joints shown in Fig. 2 and described above, and which yare at diagonally opposite corners or edges of the leg.

'In F l is shown'another modification. in which the joints or seams are at adjacent vcorners or edges ot the leg.

In the mo'dication shown in Fig. 5, one of the leg* sections 23 is provided with the beaded edge lportion '24, a spring clip 25 Vbeing formed from the edgeof the adjacent section 26and being shapedl for interlocking engagement with the bead ofyflange 24e, as shown, clip`25 beingheld insuchengagementby virtue of its ownv resiliency.

`The fastening members 184 mayy be removed by either forcing the same outwardly from flanges 16 or". by slipping the same longitudinally out of interlocking relation with the flanges. Members 18ma'y beapplied by either forcing 'the latter inwardly over these ianges or slipping the same longitudinally over the latter. Y

,lVhile [the .improvements have been es pecially described and referred to herein as in connection with the construction of elevator legs, it will off course be appreciated that the"invention" is not ylimited in this particular. On the other hand, it is equally applicable to the'construction of' spouting 27 suchasl is used very widely: in grain elevator'sn`iills, etc. for conveying the grain, flour, etc. to various locations'after it has been elevated. It is desired, therefore, that the foregoing specification and the appended claims be 'construed in a broad enough sense to include these and analogous uses.

TWhile several embodiments of the invention have` been Yshown and described, it will be understood, of course, that various changes may be made Without departing from the spirit of the invention or the scope @rare @aims-- ,said abutting portions and having a seat receiving the outwardly direct-edf projection of the vabutting portion for releasably securing the sections inassembly.

` 2. in' an elevator,y a conduit made up of complementary sections having abutting `flanges engaging eachother inface to face relation, theflanges havingl outwardly directed I projections, the projection of one flange beingspaced from the'projection of ithe other, and a resilient U-shaped clip embracing the flanges andsnugly engaging thel saine, the clip having' seats inwhich the projections are snugly litt-ed whereby the clip is held in engagement with the flanges and th'eiiangesare releasably interlocked totinaintain the sections in assembly.

:3. An elevator leg made up of complementaryI longitudinally extending sections, the sections having longitudinally extending yflanges lab'u'tting'each other in face to face relation in' assembly, the flanges having out# wardly 'directed longitudinal beads, the bead 'of one flange being' spa-ced from the bead of the other fiange'in the assembly, and resilient Ushaped clips embracing the abutting flanges, each clip having a resilient body portion and a pair of r,iegs extending from the body, portion, the legs having beads'relea'sab'ly :interlocking with the outwardly directed beads of the abutting flanges in the assembly whereby the sections are releasably maintained' in assembly-` "In [witness whereof, I hereto aiix my signature;

Louis euininrsrnii. 

